#include<bits/stdc++.h>
using namespace std;
const int N=1e5+5;
int n,r[N],a[N],ans;
queue<int> q;
int main(){
  freopen("duel.in","r",stdin);
  freopen("duel.out","w",stdout);
  cin>>n;
  for(int i=1;i<=n;i++)
    cin>>ans,a[ans]++;
  ans=0;
  for(int i=1;i<=N;i++)
    ans=max(ans,a[i]);
  cout<<ans;
  return 0;
}
